Synonyms|183Antonyms|2|Broader|0Narrower|0Related|61

15 entries under solid topic. ×

3
inscrutable(adjective, dark, uncertain, mysterious)
3
mysterious(adjective, dark, uncertain, dense)
2
incomprehensible(adjective, dark, uncertain, mysterious)
2
mystic(adjective, dense, psychic, clairvoyant)
1
Delphic(dense, unfathomable, impenetrable, unintelligible)
1
baffling(dense, unfathomable, impenetrable, unintelligible)
1
incognizable(dense, unfathomable, impenetrable, unintelligible)
1
inexplicable(adjective, dark, uncertain, mysterious)
1
obscure(dark, uncertain, mysterious, dense)
1
unfathomable(dark, uncertain, mysterious, dense)
1
ungraspable(dense, unfathomable, impenetrable, unintelligible)
1
unintelligible(dark, uncertain, mysterious, dense)
1
unknowable(dense, unfathomable, impenetrable, unintelligible)
0
enigmatical(dense, unfathomable, unintelligible, impassable)
0
indiscernible(dense, unfathomable, unintelligible, impassable)
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APASmart Define. (2015). sibylline thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/sibylline/thesaurus/synonyms
ChicagoSmart Define. 2015. "sibylline thesaurus" https://smartdefine.org/sibylline/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, sibylline thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/sibylline/thesaurus/synonyms>.
MLASmart Define. "sibylline thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/sibylline/thesaurus/synonyms>